I've used sign Painters "1-Shot " enamel for over 25 years to fill the backgrounds on engraving......
Using the same method described in the tutorial Jason linked to.....
I've also used the same 1-Shot, for well over 50 years lettering & pinstriping....
Bottom line......
Good Stuff.
Rust-oleum seems too thin, and takes too long to dry for my likeing for anything i've done...
can of paint and a thumb....& yer in business.......
Hate to hijack a thread, but question; I have heard of using speed ball printers ink to blacken the engraving. Now as to the question, how do you do it, do you thin it, use it straight?? I saw in Neil Hartliep book that he cut it 50/50 ???
Powder horn - If you are going to use The product Speed Ball Block Printers Ink, use the oil based ink and not the water based. The oil based will adhere better to a hard surface without wiping off so easily. This what I use on the FEGA castings as well.